User manual AMX AXB-VOL3 3-CHANNEL VOLUME CONTROLLER

instruction manual AXB-VOL3 Three-Channel Volume Control AXlink Bus Controllers AMX Limited Warranty and Disclaimer AMX Corporation warrants its products to be free of defects in material and workmanship under normal use for three (3) years from the date of purchase from AMX Corporation, with the following exceptions: · · · · · Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch overlay components that are warranted for a period of one (1) year. Disk drive mechanisms, pan/tilt heads, power supplies, MX Series products, and KC Series products are warranted for a period of one (1) year. Unless otherwise specified, OEM and custom products are warranted for a period of one (1) year. Software is warranted for a period of ninety (90) days. Batteries and incandescent lamps are not covered under the warranty. This warranty extends only to products purchased directly from AMX Corporation or an Authorized AMX Dealer. AMX Corporation is not liable for any damages caused by its products or for the failure of its products to perform. This includes any lost profits, lost savings, incidental damages, or consequential damages. AMX Corporation is not liable for any claim made by a third party or by an AMX Dealer for a third party. This limitation of liability applies whether damages are sought, or a claim is made, under this warranty or as a tort claim (including negligence and strict product liability), a contract claim, or any other claim. This limitation of liability cannot be waived or amended by any person. This limitation of liability will be effective even if AMX Corporation or an authorized representative of AMX Corporation has been advised of the possibility of any such damages. This limitation of liability, however, will not apply to claims for personal injury. Some states do not allow a limitation of how long an implied warranty last. Some states do not allow the limitation or exclusion of incidental or consequential damages for consumer products. In such states, the limitation or exclusion of the Limited Warranty may not apply. This Limited Warranty gives the owner specific legal rights. The owner may also have other rights that vary from state to state. The owner is advised to consult applicable state laws for full determination of rights. EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY, AMX CORPORATION MAKES NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. AMX CORPORATION EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED WARRANTY. ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF THIS LIMITED WARRANTY. Table of Contents Table of Contents Product Information .................................................................................................1 Specifications .................................................................................................................... 1 Installation .................................................................................................................3 DIP Switch Settings........................................................................................................... 3 Wiring ................................................................................................................................ 3 Preparing and connecting captive wires .................................................................................. 3 Wiring guidelines...................................................................................................................... 3 AXlink connector ...................................................................................................................... 4 Volume channels 1 - 3 connectors........................................................................................... 4 Programming ............................................................................................................5 Channel Settings Commands............................................................................................ 5 Levels ................................................................................................................................ 5 Send_Commands.............................................................................................................. 6 AXB-VOL3 Three-Channel Volume Control i Table of Contents ii AXB-VOL3 Three-Channel Volume Control Product Information Product Information The AXB-VOL3 Three-Channel Volume Control provides three audio volume control channels. Each line-level channel, opto-isolated from system ground, can be configured for balanced or unbalanced line operation. The AXB-VOL3 is programmable for 128 steps of audio level, audio mute, variable ramp speed and level presets. The AXB-VOL3 connects to Axcess control systems using the 4-wire AXlink data/power bus; it can be used for remote or rack mount applications. AXlink DEVICE ON Front 1 2 3 AXlink LED Device DIP switch Channel LEDs PWR GND AXM GND GND GND GND OUT OUT OUT OUT IN IN IN GND OUT OUT IN IN IN GND AXP Rear AXlink VOL CHAN 3 VOL CHAN 2 VOL CHAN 1 Volume Channel connector AXlink connector FIG. 1 AXB-VOL3 front and rear panel Specifications AXB-VOL3 Specifications Three line-level audio control channels: Line operation: Audio ground: Nominal input level: Max. input/output level: Volume level resolution: Attenuation: Balanced or unbalanced Audio ground opto-isolated from system ground. -10 to +4 dBm. +16 dBm. 128 volume level steps (+ .5 dB per step). 72 dB at full attenuation (mute). Total Harmonic Distortion: THD = <.008% Frequency Response 20 Hz to 20 kHz +/- 1 dB AXB-VOL3 Three-Channel Volume Control 1 Product Information AXB-VOL3 Specifications (Cont.) Front Panel Components: AXlink LED AXlink LED (green and blinks to indicate AXlink communication activity and power: · Full-Off indicates no power is being received or the controller is not functioning properly. · One blink per second indicates power is active and AXlink communication is functioning. · Full-On indicates there is no AXlink control or activity, but power is On. Device DIP Switch Channel LEDs Rear Panel Components: AXlink connector Volume Channel connectors Enclosure Dimensions (HWD) Weight AXlink Power 4-pin, captive wire connector, receives power and information via the AXlink and AXlink Central Controller. 6-pin, captive wire connectors that control audio level, audio mute, variable ramp speed and level presets of up to 3 devices. Metal with black matte finish 1.51" x 5.55" x 5.45" (3.84 cm x 14.10 cm x 13.84 cm) 1.1 lb (0.499 kg) 12 VDC @ 230 mA An 8-position DIP switch used to set the AXlink device number for the AXB-VOL3. Red channel LEDs 1 - 3. The LEDs individually light indicating a change in channel levels. 2 AXB-VOL3 Three-Channel Volume Control Installation Installation DIP Switch Settings Use the device DIP switch to set the AXB-VOL3 AXlink device number. You can set it as one of 255 devices in an Axcess control system. Set the device number with the total of all ON (down) switches. As an example, the DIP switch below defines Device 128. Device DIP Switch Settings Position Value 1 1 2 2 3 4 4 8 5 6 7 8 O 12345678 N 16 32 64 128 The device number takes effect only upon power-up. If you later change the device number, remove and reconnect the AXlink connector to enter the new device number into memory. AMX standard device numbers are assigned as follows: Cards are 1 through 25. Boxes are 96 through 127. Panels are 128 through 255. The AXB-PCCOM emulates a touch panel when set in the panel range. Wiring Preparing and connecting captive wires 1. Strip 0.25 inch of wire insulation off all wires. 2. Insert each wire into the appropriate opening on the connector according to the wiring diagrams and connector types described in this section. 3. Tighten the screws to secure the wires. Do not tighten the screws excessively; doing so may strip the threads and damage the connector. Wiring guidelines The interface requires a 12 VDC power to operate properly. The interface uses a PSN2.8 power supply. The Central Controller supplies power via the AXlink cable or external 12 VDC power supply. The maximum wiring distance between the Central Controller and interface is determined by power consumption, supplied voltage, and the wire gauge used for the cable. The table below lists wire sizes and maximum lengths allowable between the VOL3 and Central Controller. The maximum wiring lengths for using AXlink power are based on a minimum of 13.5 volts available at the Central Controller's power supply. Wiring Guidelines at 230 mA Wire Size Maximum Wiring Length 18 AWG 20 AWG 22 AWG 24 AWG 510.31 feet (155.54 m) 371.29 feet (113.17 m) 201.29 feet (61.35 m) 126.88 feet (38.67 m) AXB-VOL3 Three-Channel Volume Control 3 Installation AXlink connector Install the AXlink data/power bus wiring as shown in FIG. 2. PWR AXP AXM GND AXB-VOL3 FIG. 2 AXlink data/power connections PWR AXP AXM GND Control system Volume channels 1 - 3 connectors Volume channels 1 - 3 can be wired for unbalanced or balanced line operation, as shown in FIG. 3. Optional 600 ohm resistor can be added for impedance matching, if required GND ININ+ GND OUTOUT+ Unbalanced IN Jumper IN- to GND GND ININ+ GND Balanced IN Unbalanced OUT OUTOUT+ Balanced OUT FIG. 3 Volume Channels 1 - 3 Connector wiring diagrams 4 AXB-VOL3 Three-Channel Volume Control Programming Programming The following sections list Axcess programming commands used with the AXB-VOL3. Channel Settings Commands Use the AXB-VOL3 channel settings listed for ramp up, ramp down and mute operations.. AXB-VOL3 Channel Setting Commands Channel Description 1 2 3 4 5 6 Ramps channels 1 and 2 up. Ramps channels 1 and 2 down. Mutes channels 1 and 2. Ramps channel 1 up. Ramps channel 1 down. Mutes channel 1. Channel Description 7 8 9 10 11 12 Ramps channel 2 up. Ramps channel 2 down. Mutes channel 2. Ramps channel 3 up. Ramps channel 3 down. Mutes channel 3. Ramping a volume channel while the mute channel is on will NOT automatically turn off the mute channel (will not restore) but the ramping will still occur and the volume change will be noticed when the mute channel is turned off. For setting ramp rates and presets, see SEND_COMMAND programming instructions below. For reading current volume levels and displaying bargraphs see CREATE_LEVEL and SEND_LEVEL programming instructions. Volume channels 1 through 3 use levels 1 to 3 respectively. When controlling levels, such as with an active bargraph, there is no LED indication of volume changes. Levels 1 = Output #1 2 = Output #2 3 = Output #3 AXB-VOL3 Three-Channel Volume Control 5 Programming Send_Commands System Send_Commands are stored in the Axcess Control System. AXB-VOL3 Send_Commands PLT Ramps specified channel(s) from current level to a specified preset level or percentage at the current rate or optionally in a specified amount of time. Syntax: SEND_COMMAND VOL, 'P

L[T]' Variables: Output Channel = Channel numbers 1, 2 or 3. Output channel 0 = both channels 1 and 2. Level = Level number (0-255) or percentage (0-100 percent). Level 0 is lowest volume (same as mute) and 255 or 100% is maximum volume. Time = Optional ramp time (0-255) in tenths of a second. Example 1: SEND_COMMAND VOL,'P0L50%' Ramps both channels to 50% mid level volume at the current ramp rate. Example 2: SEND_COMMAND VOL,'P1L255T20' Ramps channel 1 to highest level volume in 2 seconds. PR Sets the ramp rate of the specified channel(s) where the time is the time to ramp the full range both down to up and up to down or optionally just down to up or just up to down. Syntax: SEND_COMMAND VOL, 'P

R[U|D]' Variables: Output Channel = Channel numbers 1, 2 or 3. Output channel 0 = both channels 1 and 2. Ramp Rate = Sets ramp rate (1-255) for channel commands in tenth second increments. U = Optional character sets rate for ramp up. D = Optional character sets rate for ramp down. Example 1: SEND_COMMAND VOL, 'P0R50' Sets ramp rate of channels 1 and 2 to 5 seconds full range from down to up and up to down. Example 2: SEND_COMMAND VOL, 'P3R50D' Sets ramp rate of channel 3 to 5 seconds full range from up to down only. 6 AXB-VOL3 Three-Channel Volume Control Programming AXB-VOL3 Send_Commands (Cont.) PP Syntax: SEND_COMMAND VOL, 'P = P' Variable: Channel = Enter channel number. Examples: SEND_COMMAND VOL, 'P1 = P2' Sets channel 1 level to the same as channel 2. SEND_COMMAND VOL, 'P1 = P3' Sets channel 1 level to the same as channel 3. SEND_COMMAND VOL, 'P2 = P1' Sets channel 2 level to the same as channel 1. SEND_COMMAND VOL, 'P2 = P3' Sets channel 2 level to the same as channel 3. SEND_COMMAND VOL, 'P3 = P1' Sets channel 3 level to the same as channel 1. SEND_COMMAND VOL, 'P3 = P2' Sets channel 3 level to the same as channel 2. Note: You cannot use 'P0' with these commands. AXB-VOL3 Three-Channel Volume Control 7 AMX reserves the right to alter specifications without notice at any time. brussels · dallas · los angeles · mexico city · philadelphia · shanghai · singapore · tampa · toronto* · york 3000 research drive, richardson, TX 75082 USA · 469.624.8000 · 800.222.0193 · fax 469.624.7153 · technical support 800.932.6993 032-004-1024 12/04 ©2004 AMX Corporation. All rights reserved. AMX, the AMX logo, the building icon, the home icon, and the light bulb icon are all trademarks of AMX Corporation. AMX reserves the right to alter specifications without notice at any time. *In Canada doing business as Panja Inc.